Folding electric camping car with improved clamp device

Abstract

The folding electric camping car comprises a folding car body, the clamping device is arranged at one end of the folding car body and comprises a hoop ring with an opening, and the first end of the hoop ring is rotationally connected with a limiting piece; the limiting part can rotate to the closed position to enable the hoop ring to form a closed-loop structure or the open position to enable the hoop ring to return to the open state, an inductor is further arranged at the second end of the hoop ring, when the limiting part is located at the closed position, the inductor is triggered, and at the moment, the controller receives a trigger signal of the inductor and controls the driving wheel to operate. By arranging the inductor on the clamp device, the camping car cannot be driven to advance without responding to a control instruction under the condition that the inductor is not triggered, and after the inductor is triggered, the driving circuit is switched on, the control instruction is received, and the camping car is driven to advance, so that potential safety hazards are eliminated, and the use safety is ensured; and through the arrangement of the clamping device, the service life of the rotation limiting device of the steering yoke can be prolonged.

Description

A folding electric campervan with an improved clamp device Technical Field

[0001] This utility model relates to the field of clamp technology, and in particular to a folding electric camping vehicle with an improved clamp device. Background Technology

[0002] A campervan is a foldable, towable vehicle. Because it is easy to use, can carry cargo, is easy to store, and saves time and effort, it is widely used for transporting things and is now often used for outdoor activities or short-distance transportation.

[0003] To improve the practicality and user experience of campervans, the inventor designed a passenger-carrying electric campervan, as shown in the utility model patent application number CN202323226592.2 (A Reinforced Structure for an Electric Folding Cart). This design achieves passenger-carrying functionality by placing a seat on top of the folding frame and using a steering lever and control device, effectively enhancing the user experience. However, in actual use, it was found that because this electric campervan also needs to have a towing function, the steering lever needs to be able to rotate vertically. But to ensure safety during riding, the steering lever cannot rotate vertically. Therefore, a further step is required... Traditionally, the steering lever is restricted by using a clamp on the folding frame to limit its vertical rotation. However, campervans frequently switch between riding and towing, making it easy to forget to restrict the steering lever when switching from towing to riding. Furthermore, users may take a chance and not apply the restriction, leading to the user leaning forward or tipping over due to inertia from braking or impacts, posing a safety hazard. Although the steering lever itself has a rotation limiting device, relying solely on it can easily cause deformation due to prolonged and repeated excessive stress.

[0004] Therefore, there is an urgent need to design a folding electric campervan with an improved clamp device to solve one or more technical problems of the existing technology. Summary of the Invention

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a folding electric camping vehicle with an improved clamp device, characterized in that it includes: a folding vehicle body, wheels respectively provided at the bottom of both ends of the folding vehicle body, at least one of the wheels being a drive wheel, a steering rod assembly also provided at the front of one end of the folding vehicle body, a steering control assembly connected to the bottom end of the steering rod assembly, the steering control assembly being connected to the wheel at the same end, and the steering rod assembly controlling the steering of the connected wheel through the steering control assembly; the folding vehicle body also includes a controller and a power supply, the power supply being connected to the controller, and the wheel serving as a drive wheel being electrically connected to the controller; The folding vehicle body has a clamping device at one end of the steering rod assembly. The clamping device includes a hoop with an opening, which provides circumferential constraint to the steering rod assembly. The steering rod assembly can rotate laterally within the hoop. A limiter is rotatably connected to the first end of the hoop. The limiter can rotate to a closed position to form a closed loop structure or to an open position to restore the hoop to an open state. A sensor is also provided at the second end of the hoop. The sensor is electrically connected to a controller. When the limiter is in the closed position, the sensor is triggered. At this time, the controller receives the trigger signal from the sensor and controls the drive wheel to run.

[0006] In a preferred embodiment, the end of the limiting member away from the end rotatably connected to the hoop is provided with a limiting post, and the side wall of the second end of the hoop is provided with a limiting groove, the limiting post being adapted to the limiting groove.

[0007] In a preferred embodiment, the end of the limiting member away from the rotatable connection with the hoop is further provided with an outwardly protruding protrusion, which is opposite to the sensor when the limiting member closes the hoop.

[0008] In a preferred embodiment, a limiting seat is provided on the side of the hoop opposite to the opening, and a protruding limiting part is provided at each of the two opposite corners of the limiting seat.

[0009] In a preferred embodiment, a detection switch is further provided on the inner side of the hoop, and the detection switch is electrically connected to the controller.

[0010] The beneficial effects of this utility model are: by setting a sensor on the clamp device, the vehicle will not respond to control commands and cannot be driven to move when the sensor is not triggered; after the sensor is triggered, the drive circuit is turned on, the control command is received, and the vehicle is driven to move, thus eliminating safety hazards and ensuring safe use. In addition, the clamp device can also extend the service life of the steering rod's rotation limiting device. Attached Figure Description

[0011] Figure 1 is a schematic diagram of the structure of this utility model;

[0012] Figure 2 is a structural schematic diagram of the clamp device of this utility model in the open state;

[0013] Figure 3 is a structural schematic diagram of the clamp device of this utility model in the closed state.

[0014] In the picture:

[0015] 10. Folding body; 11. Wheel; 12. Steering rod assembly; 13. Steering control assembly; 14. Clamping device; 141. Hoop ring; 142. Limiting component; 143. Sensor; 144. Limiting post; 145. Limiting slot; 146. Protrusion; 15. Limiting seat; 151. Limiting part; 152. Detection switch; 16. Controller; 17. Power supply; 18. Seating device. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0018] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0019] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0020] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] As shown in Figures 1-3, this utility model provides a folding electric camping vehicle with an improved clamp device 14, characterized in that it includes: a folding vehicle body 10, with wheels 11 respectively provided at the bottom of both ends of the folding vehicle body 10, at least one of the wheels 11 being drive wheels, and a steering rod assembly 12 also provided at the front of one end of the folding vehicle body 10, with a steering control assembly 13 connected to the bottom end of the steering rod assembly 12, the steering control assembly 13 being connected to the wheel 11 at the same end, and the steering rod assembly 12 controlling the steering of the connected wheel 11 through the steering control assembly 13; the folding vehicle body 10 also includes a controller 16 and a power supply 17, the power supply 17 being connected to the controller 16, and the wheel 11 serving as the drive wheel being electrically connected to the controller 16; the folding vehicle body 10 The steering rod assembly 12 is provided with a clamping device 14 at one end. The clamping device 14 includes a clamping ring 141 with an opening. The clamping ring 141 forms a circumferential constraint on the steering rod assembly 12. The steering rod assembly 12 can rotate laterally within the clamping ring 141. The first end of the clamping ring 141 is rotatably connected to a limiting member 142. The limiting member 142 can rotate to a closed position to form a closed loop structure of the clamping ring 141 or to an open position to restore the clamping ring 141 to an open state. The second end of the clamping ring 141 is provided with a sensor 143. The sensor 143 is electrically connected to the controller 16. When the limiting member 142 is in the closed position, the sensor 143 is triggered. At this time, the controller 16 receives the trigger signal from the sensor 143 and controls the drive wheel to run.

[0022] Specifically, the folding vehicle body 10 can be either a bi-fold type or a convergent type. A bi-fold type means that when the folding vehicle body 10 is folded, the front and rear sides fold towards the center, or the left and right sides fold towards the center. A convergent type means that all four sides of the folding vehicle body 10 can converge towards the center, resulting in a smaller folded volume. Wheels 11 are also provided at the bottom of both ends of the folding vehicle body 10, and at least one wheel 11 is a drive wheel, i.e., a hub motor. When only one wheel 11 is a drive wheel, that wheel 11 can be rotatably connected to the folding vehicle body 10 for direction control. When both wheels 11 are drive wheels, one of the wheels 11 can be selected for use as needed. The folding vehicle body 10 is equipped with a power supply 17 and a controller 16. The power supply 17 is electrically connected to the controller 16, and the drive wheel is electrically connected to the controller 16. The controller 16 controls the drive wheel to run by receiving commands. A steering rod assembly 12 is also provided at the front of one end of the folding vehicle body 10, and a steering control assembly 13 is connected to the bottom end of the steering rod assembly 12. The steering control assembly 13 is connected to two wheels 11 at the same end. The steering rod assembly 12 controls the lateral rotation of the two wheels 11 connected to it through the steering control assembly 13 to control the direction of travel of the folding vehicle body 10. A seat device 18 is also installed on at least the end of the folding vehicle body 10 adjacent to the end where the steering rod assembly 12 is provided for carrying a person.

[0023] To address the technical problems existing in the prior art, this application provides a clamping device 14 at one end of the folding vehicle body 10 where the direction rod assembly 12 is located. The clamping device 14 includes a clamp ring 141 with an opening on one side. The clamp ring 141 is adapted to the direction rod assembly 12, and the direction rod of the direction rod assembly 12 can be inserted into the clamp ring 141 through the opening. To increase the restraining force of the clamp ring 141 on the direction rod assembly 12, a limiting member 142 is rotatably connected to the first end of the clamp ring 141 via a rotating shaft. The limiting member 142 can rotate relative to the clamp ring 141, and the rotation direction can be vertical or horizontal. The other end of the limiting member 142 can be connected to the second end of the hoop 141. When the other end of the limiting member 142 rotates around the pivot to the second end of the hoop 141 and connects with the second end of the hoop 141, this is the closed position. At this time, the limiting member 142 closes the opening of the hoop 141, and the hoop 141 forms a closed loop structure, preventing the steering rod assembly 12 located inside the hoop 141 from coming out of the hoop 141. When the other end of the limiting member 142 does not rotate to the second end of the hoop 141 and connect, this is the open position. At this time, the limiting member 142 returns to the open state, allowing the steering rod assembly 12 to enter and exit. The limiting member 142... 2. The connection between the retaining member 142 and the second end of the hoop 141 can be achieved by a spring-locking pin or by a snap-fit ​​mechanism to secure the rotation of the retaining member 142. This design aims to provide a strong limiting effect for the retaining member 142 while also facilitating the release of the connection between the retaining member 142 and the second end of the hoop 141. To prevent the user from forgetting to close the hoop 141, a sensor 143 is also provided at the second end of the hoop 141. This sensor 143 is preferably a distance sensor, such as a laser sensor, infrared sensor, grating sensor, or contact switch. In this embodiment, a distance sensor is preferred. This sensor 143 is electrically connected to the controller 16. The sensor is used to sense whether the limiting member 142 is in the closed position. When the limiting member 142 is in the closed position, it means that the limiting member 142 is connected and locked with the hoop 141. At this time, the limiting member 142 will trigger the sensor 143. In this state, the sensor 143 will send a trigger signal to the controller 16. The controller 16 recognizes and receives the trigger signal and controls the drive circuit to be turned on. At this time, the controller 16 will accept the user's control command to control the drive wheel to run. Otherwise, the controller 16 will not respond to the received control command, so that the user cannot control the drive wheel to run, thereby eliminating safety hazards and ensuring the user's safety.

[0024] It should be noted that, in order to inform the user of the problem that the device cannot start, when the user issues control commands multiple times and the sensor 143 is in an untriggered state, the sensor 143 will issue a warning signal. The warning signal can be displayed on the screen, sent to the user's mobile device, or made through voice prompts, depending on the user's needs.

[0025] In order to reduce the possibility of cheating, the sensor 143 can also be set to be in a normally open state. That is to say, the sensor 143 needs to be in a continuously triggered state. If the triggering of the sensor 143 is interrupted in the middle, a second trigger signal will be sent. After receiving the second trigger signal, the controller 16 will execute the program when it is not triggered, cut off the drive circuit and not respond to the control command.

[0026] It should be noted that control commands include, but are not limited to, ignition switch drive signals and remote control drive signals.

[0027] Furthermore, the end of the limiting member 142 away from the end rotatably connected to the hoop 141 is provided with a limiting post 144, and the side wall of the second end of the hoop 141 is provided with a limiting groove 145, and the limiting post 144 is adapted to the limiting groove 145.

[0028] Specifically, in this embodiment, one method of connecting the limiting member 142 and the hoop 141 is disclosed. A limiting post 144 is fixedly inserted at the end of the limiting member 142 away from the rotatably connected hoop 141. The two ends of the limiting post 144 protrude from the upper and lower surfaces of the limiting member 142, respectively. Simultaneously, a limiting groove 145 is formed on the side wall of the second end of the hoop 141. The limiting post 144 and the limiting groove 145 are adapted to each other. To reduce material costs, the hoop 141 is typically made of plastic. To ensure initial limiting force, the inner diameter of the hoop 141 is usually slightly smaller than the steering rod in the steering rod assembly 12. Therefore, when the steering rod is inserted into the hoop 141, it will compress the hoop 141 outwards. At this time, when the other end of the limiting member 142 rotates to the second end of the hoop 141, the limiting post 144 is embedded in the limiting groove 145. Because the hoop 141 is squeezed and expands outward, the limiting post 144 and the limiting slot 145 fit tightly together, thereby achieving the connection between the limiting member 142 and the hoop 141 and restricting the rotation of the limiting member 142. In this embodiment, to facilitate the cooperation between the limiting post 144 and the limiting slot 145, a clearance groove is also provided at the second end of the hoop 141. When the limiting member 142 rotates on the second end of the hoop 141, it can be inserted into the end of the hoop 141 through the clearance groove, so that the positions of the limiting post 144 and the limiting slot 145 correspond. Of course, the end of the limiting member 142 away from the first end of the hoop 141 can also be provided with a hook shape, and the limiting post 144 is at the end of the hook shape. When connected, the end of the limiting post 144 away from the first end of the hoop 141 hooks onto the second end of the hoop 141. At this time, the limiting post 144 can improve the stability of the hook.

[0029] Furthermore, the end of the limiting member 142 away from the end rotatably connected to the hoop 141 is also provided with an outwardly protruding protrusion 146, which is opposite to the sensor 143 when the limiting member 142 closes the hoop 141.

[0030] Specifically, when the sensor 143 is a distance sensor, in order to ensure the triggering accuracy of the sensor 143, a protruding protrusion 146 is provided at the end of the limiting member 142 away from the first end connected to the hoop 141. When the limiting member 142 is in the closed position, the protrusion 146 is opposite to the sensor 143, shortening the distance between the limiting member 142 and the sensor 143. The protrusion 146 ensures that the sensor enters the sensing range of the sensor 143, so that the sensor 143 can be triggered accurately. If it is a contact switch, the protrusion 146 can touch the contact switch to trigger it.

[0031] Furthermore, a limiting seat 15 is provided on the side of the hoop 141 opposite to the opening, and a protruding limiting part 151 is provided at each of the two opposite corners of the limiting seat 15.

[0032] Specifically, taking a folding vehicle body as an example in this application, since folding is required in multiple directions, the folding vehicle body 10 is preferably composed of an "X"-shaped bracket. This structure is simple, low-cost, and meets the folding requirements. The clamp 141 is installed in the middle of the bracket at the front end of the folding vehicle body 10. If a traditional bolt connection is used, the clamp 141 will rotate around the bolt. Although tightening the nut can increase friction, it is prone to loosening during use, resulting in rotation. This necessitates rotating the clamp 141 to maintain its correct position before inserting the steering rod, causing inconvenience. To avoid this problem, a [further details are needed regarding the clamp 141]. The integrated support includes a limiting seat 15, which has protruding limiting portions 151 at two opposite corners on the side away from the hoop 141. When the hoop 141 is installed on the bracket, it is secured to one of the bracket rods by the limiting portions 151 on the limiting seat 15 and fixed with bolts to prevent displacement. Since the limiting portions 151 are protruding, they form a groove, and the bracket rod is located in the groove. However, since the limiting portions 151 are set at two opposite corners, they can restrict the unidirectional rotation between the hoop 141 and the bracket rod, and will not restrict the rotation of the bracket rod between folding and unfolding, thereby reducing the possibility of the hoop 141 rotating.

[0033] Furthermore, a detection switch 152 is provided on the inner side of the hoop 141, and the detection switch 152 is electrically connected to the controller 16;

[0034] Specifically, since sensor 143 only senses limit member 142, there may be a situation where sensor 143 senses limit member 142, but the steering rod is not inside the hoop 141. To avoid this situation, a detection switch 152 is provided inside the hoop 141. The detection switch 152 can be a contact switch, a photoelectric switch, or a metal detection switch 152. In this embodiment, a contact switch is preferred to ensure that the steering rod is located inside the hoop 141. When the steering rod is inside the hoop 141, it will contact the contact switch, making the contact switch closed. At this time, the contact switch sends a contact signal to the controller 16. After receiving the contact signal from the contact switch and the trigger signal from sensor 143, the controller 16 controls the drive wheel to run.

[0035] In summary, by setting a sensor 143 on the clamp device 14, the campervan will not respond to control commands and cannot be driven when the sensor 143 is not triggered. When the sensor 143 is triggered, the drive circuit is turned on, the control command is received, and the campervan is driven, thus eliminating safety hazards and ensuring safe use. In addition, the clamp device 14 can also extend the service life of the steering rod's rotation limiting device.

[0036] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A folding electric camping vehicle with an improved clamp device, characterized in that, include: The folding vehicle body has wheels at both ends of its bottom, with at least one wheel being a drive wheel. A steering rod assembly is also located at the front of one end of the folding vehicle body. A steering control assembly is connected to the bottom of the steering rod assembly and is connected to the wheel at the same end. The steering rod assembly controls the steering of the connected wheel through the steering control assembly. The folding vehicle body also includes a controller and a power supply. The power supply is connected to the controller, and the wheel, serving as the drive wheel, is electrically connected to the controller. A clamping device is also provided at the end of the folding vehicle body where the steering rod assembly is located. The clamping device includes a ring with an opening, which provides circumferential constraint to the steering rod assembly. The steering rod assembly can rotate laterally within the ring. A limiter is rotatably connected to the first end of the ring. The limiter can rotate to a closed position to form a closed-loop structure or to an open position to restore the ring to an open state. A sensor is also provided at the second end of the ring, which is electrically connected to the controller. When the limiter is in the closed position, the sensor is triggered. At this time, the controller receives the trigger signal from the sensor and controls the drive wheel to run.

2. The folding electric camping vehicle with an improved clamp device according to claim 1, characterized in that, The limiting member has a limiting post at the end away from the rotatable connection with the hoop, and a limiting groove is formed on the side wall of the second end of the hoop, with the limiting post and the limiting groove being adapted to each other.

3. The folding electric camping vehicle with an improved clamp device according to claim 1, characterized in that, The end of the limiting member away from the rotatable connection with the hoop is also provided with an outwardly protruding protrusion, which is opposite to the sensor when the limiting member closes the hoop.

4. The folding electric camping vehicle with an improved clamp device according to claim 1, characterized in that, The hoop is also provided with a limiting seat on the side opposite to the opening, and the limiting seat has protruding limiting parts at two opposite corners.

5. The folding electric camping vehicle with an improved clamp device according to claim 1, characterized in that, The inner side of the hoop is also provided with a detection switch, which is electrically connected to the controller.

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